Acronis Backup Cloud: 'Backup is missing' alert from a backup plan applied to a Hyper-V replica VM

Symptoms

You have a backup plan applied to a Hyper-V replica VM, where the backup agent is installed only on Hyper-V replica target host (no agent on source host).

After updating to Acronis Cyber Cloud v.8.0, you are getting the following alert from this plan triggered after some time:

Backup is missing: No successful backups for X days